Re: [PATCH] scripts/kernel-doc: support EXPORT_SYMBOL_NS_GPL() with -export

[Jason Gunthorpe <jgg@nvidia.com>]

On Tue, Nov 08, 2022 at 03:25:10PM +0000, Matthew Wilcox wrote:
> On Tue, Nov 08, 2022 at 11:02:35AM -0400, Jason Gunthorpe wrote:
> > (I don't know perl at all so happy to replace this with something more elegant)
> >  my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
> > +my $export_symbol_ns = '^\s*EXPORT_SYMBOL_NS(_GPL)?\s*\(\s*(\w+)\s*,\s*\w+\)\s*;';
> 
> How about:
> 
> -my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
> +my $export_symbol = '^\s*EXPORT_SYMBOL(_NS)?(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
> 
> Not them i'm a perlite either, but this is just a regexp.

I started like that, but the target text looks like this:

EXPORT_SYMBOL_NS_GPL(iommufd_access_destroy, IOMMUFD);

And the (\w+) capture should only pick "iommufd_access_destroy", so
the ideal regex does the ",\s*\w+)" part only if _NS was matched
earlier.

Jason